Modifying standard KM upload functionality

Hello! Experts,

i have an enhancement to made, which is to add an JavaScript alert in KM upload function.

I manage to get the name of this par file from codelink which is ‘com.sap.km.cm’ (upload); but to add scrip to this function; I am not able to see any code in this par file.

Please let me know where I should modify this function?

Thanks! in advance

Best regards,

Kishore